US Bridges

US 11 over Potomac River CSX Trans

Fair

Washington County, Maryland · On West Virginia ST Line · Structure no. 100000210001010

Built
1909
116 years old, rebuilt 1980
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
1,701 ft
17 main spans
Daily traffic
6,761
2023 count
Owner
State
State Highway Agency

About this bridge

US 11 over Potomac River CSX Trans is a steel stringer/multi-beam or girder carrying US 11 over Potomac River CSX Trans in Washington County, Maryland. It was built in 1909 and reconstructed in 1980, so it is 116 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,761 vehicles a day, roughly 8% of them trucks, projected to reach 8,728 by 2043. The structure is 1,701 ft (518.5 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 11
CrossesPotomac River CSX Trans
LocationOn West Virginia ST Line
RouteU.S. Route 11
Coordinates39.59974, -77.82629
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.4 US tons
Inventory rating59 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans17
Design loadHS 20
Structure length1,701 ft (518.5 m)
Longest span100 ft (30.5 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,761 (2023)
Projected traffic8,728 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 11 over Potomac River CSX Trans built?

It was built in 1909, making it 116 years old in 2025. It was reconstructed in 1980.

What condition is US 11 over Potomac River CSX Trans in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does US 11 over Potomac River CSX Trans carry?

About 6,761 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 11 over Potomac River CSX Trans?

The structure is 1,701 ft (518.5 m) long with a longest span of 100 ft (30.5 m) and a deck 33 ft wide.

Who owns US 11 over Potomac River CSX Trans?

It is owned by the State Highway Agency.